hw/vfio/common: Add a trace point in vfio_reset_handler

To ease the debug of reset sequence, let's add a trace point in vfio_reset_handler() Signed-off-by: Eric Auger <[email protected]> Reviewed-by: Cédric Le Goater <[email protected]> Acked-by: Michael S. Tsirkin <[email protected]> Reviewed-by: Zhenzhong Duan <[email protected]> Message-Id: <[email protected]> Reviewed-by: Peter Xu <[email protected]> Reviewed-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
loongson · Feb 21, 2025 · d410e70 · d410e70
1 parent e39e3f8
commit d410e70
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diff --git a/hw/vfio/common.c b/hw/vfio/common.c
@@ -1386,6 +1386,7 @@ void vfio_reset_handler(void *opaque)
 {
     VFIODevice *vbasedev;
 
+    trace_vfio_reset_handler();
     QLIST_FOREACH(vbasedev, &vfio_device_list, global_next) {
         if (vbasedev->dev->realized) {
             vbasedev->ops->vfio_compute_needs_reset(vbasedev);

diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events
@@ -120,6 +120,7 @@ vfio_get_dev_region(const char *name, int index, uint32_t type, uint32_t subtype
 vfio_legacy_dma_unmap_overflow_workaround(void) ""
 vfio_get_dirty_bitmap(uint64_t iova, uint64_t size, uint64_t bitmap_size, uint64_t start, uint64_t dirty_pages) "iova=0x%"PRIx64" size= 0x%"PRIx64" bitmap_size=0x%"PRIx64" start=0x%"PRIx64" dirty_pages=%"PRIu64
 vfio_iommu_map_dirty_notify(uint64_t iova_start, uint64_t iova_end) "iommu dirty @ 0x%"PRIx64" - 0x%"PRIx64
+vfio_reset_handler(void) ""
 
 # platform.c
 vfio_platform_realize(char *name, char *compat) "vfio device %s, compat = %s"